Omron SYSDRIVE 3G3FV User Manual page 157

Basic Operation
The timing of the initial excitation function depends on the zero-speed operation method selected with
b1-05, as shown in the following diagrams.
Run command
Frequency reference
from analog input
b1-05 = 0
(RUN at Frequency Ref)
Initial excitation
b1-05 = 1
(STOP)
Initial excitation from E1-09
b1-05 = 2
(RUN at Min Frequency)
b1-05 = 3
(RUN at Zero RPM)
Note 1. Initial excitation is started from b2-01 (excitation level) when decelerating.
A setting of b2-01 < E1-09 is valid only with flux vector control.
Note 2. The current level for the initial excitation function is set in E2-03 (no-load current). The DC
braking (injection) current (b2-02) isn't used with flux vector control and can't be set.
5-4-3 Auto-tuning
H Inverter Input Voltage Setting (E1-01)
Set the Inverter's input voltage (E1-01) to match the power supply voltage; it cannot be changed during
operation. This setting is used as the reference value for functions such as the protection functions.
Parameter Display p y
number name
E1-01 Input Voltage
BB
(Baseblock)
BB Zero speed
Setting g Units
range
155 to 255 VAC
(310 to 510)
Inverter's internal frequency reference
(Soft start input)
After the frequency reference falls below
E1-09, initial excitation starts when the
motor speed drops below b2-01.
After the run command goes OFF, initial
excitation starts when the motor speed
drops below b2-01.
After the run command goes OFF, initial
excitation starts when the motor speed
drops below b2-01.
Zero speed
Valid access levels
Default
setting
V/f V/f with
Control PG
200 Quick-start, Basic, or Advanced
(400)
Chapter 5
Initial excitation
Open Loop
Vector Vector
Flux
5-35